Fig. 2From: Detection of nasopharyngeal carcinoma in Morocco (North Africa) using a multiplex methylation-specific PCR biomarker assayMMSP assay applied to DNAs from matched NPC tissue and serum from China. A mixture of cell line DNA from CNE1 and Namalwa was used as a positive control as follows: P1: 40Â ng CNE1 and Namalwa DNA in 1:2 ratio; P2: 10Â ng CNE1 and Namalwa DNA in 1:2 ratio; P3: 5Â ng CNE1 and Namalwa DNA in 1:2 ratio. Water was used as a blank control. T NPC tissue, S serumBack to article page